The invention relates to a method for producing industrial pure iron through smelting of an EBT electric arc furnace, and belongs to the technical field of industrial pure iron smelting. According tothe method, waste magnesium brick particles replace fluorite, so that erosion of molten iron to the furnace wall of the EBT electric arc furnace in the smelting process is greatly reduced. According to the method, impurities such as silicon, manganese, phosphorus and sulfur of the molten iron can be effectively removed, and particularly, deep decarbonization is carried out by adding scale, so thatthe content of carbon in the molten iron is effectively reduced to 0.015% or above and the industrial pure iron lower in carbon content can be produced. In addition, the erosion of the molten iron tothe furnace wall of the EBT electric arc furnace is reduced in the smelting process, and the service life of a furnace body can be prolonged.